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Chronic Fatigue Syndrome

What Is It?

Published: October, 2018

Chronic fatigue syndrome, also known as myalgic encephalomyelitis, is a complicated illness characterized by at least six months of extreme fatigue that is not relieved by rest, and a group of additional symptoms that also are constant for at least six months. In many people with chronic fatigue syndrome, the disorder begins suddenly, often following a flulike infection or an episode of physical or psychological trauma, such as surgery, a traumatic accident or the death of a loved one. In other cases, chronic fatigue syndrome develops gradually. The illness lasts for many months or years, and only a small percentage of people recover full health.

Many people feel tired a lot of the time, and many seek help from their doctors. Most people who experience chronic (long-lasting) fatigue are not suffering from chronic fatigue syndrome. Depression and overwork are much more common causes of chronic fatigue.

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Daily Health Tip

Get a grip

Grip strength can fade with age. But if your grip has gotten noticeably weaker, talk with your doctor. An instrument called a hand dynamometer, which measures how hard you can squeeze, can help assess how much muscle strengthening you need.